Background Several small studies have reported a lower responserate to interferon alfa among black patients with chronic hepatitisC infection than among white patients. The increased prevalenceof infection with hepatitis C virus (HCV) genotype 1, whichhas a lower response rate than other genotypes, has been suggestedas the cause.
Methods We treated 100 black patients and 100 non-Hispanic whitepatients with chronic hepatitis C with peginterferon alfa-2band ribavirin for 48 weeks. Enrollment was controlled so thatthe two groups had similar proportions of patients with genotype1 infection. The primary end point was a sustained virologicresponse, which was defined as a negative test for serum HCVRNA six months after the completion of therapy.
Results In both cohorts, 98 percent of patients had genotype1 infection. The rate of sustained virologic response was higheramong non-Hispanic white patients than among black patients(52 percent vs.19 percent, P<0.001). The black patients alsohad significantly lower rates of virologic response at 12 weeksand at the end of treatment. Multivariable analyses examiningsociodemographic and clinical characteristics found that blackrace was the only variable significantly associated with thedifference in response rate.
Conclusions Black patients with chronic hepatitis C have a lowerrate of response to treatment with peginterferon alfa-2b andribavirin than non-Hispanic white patients, a difference thatis not explained by differences in the viral genotype.
Source Information
From the Division of Gastroenterology (A.J.M., J.D.B., P.G.K.) and the Duke Clinical Research Institute (A.J.M.), Duke University, Durham, N.C.
Address reprint requests to Dr. Muir at Duke University Medical Center, Box 3913, Durham, NC 27710, or at muir0002{at}mc.duke.edu.
Moucari, R, Ripault, M-P, Martinot-Peignoux, M, Voitot, H, Cardoso, A-C, Stern, C, Boyer, N, Maylin, S, Nicolas-Chanoine, M-H, Vidaud, M, Valla, D, Bedossa, P, Marcellin, P
(2009). Insulin resistance and geographical origin: major predictors of liver fibrosis and response to peginterferon and ribavirin in HCV-4. Gut
58: 1662-1669
[Abstract][Full Text]
Navaneethan, U., Kemmer, N., Neff, G. W.
(2009). Review: Predicting the probable outcome of treatment in HCV patients. Therapeutic Advances in Gastroenterology
2: 287-302
[Abstract]
McHutchison, J. G., Lawitz, E. J., Shiffman, M. L., Muir, A. J., Galler, G. W., McCone, J., Nyberg, L. M., Lee, W. M., Ghalib, R. H., Schiff, E. R., Galati, J. S., Bacon, B. R., Davis, M. N., Mukhopadhyay, P., Koury, K., Noviello, S., Pedicone, L. D., Brass, C. A., Albrecht, J. K., Sulkowski, M. S., the IDEAL Study Team,
(2009). Peginterferon Alfa-2b or Alfa-2a with Ribavirin for Treatment of Hepatitis C Infection. NEJM
361: 580-593
[Abstract][Full Text]
McHutchison, J. G., Everson, G. T., Gordon, S. C., Jacobson, I. M., Sulkowski, M., Kauffman, R., McNair, L., Alam, J., Muir, A. J., the PROVE1 Study Team,
(2009). Telaprevir with Peginterferon and Ribavirin for Chronic HCV Genotype 1 Infection. NEJM
360: 1827-1838
[Abstract][Full Text]
Rousseau, C. M., Ioannou, G. N., Todd-Stenberg, J. A., Sloan, K. L., Larson, M. F., Forsberg, C. W., Dominitz, J. A.
(2008). Racial Differences in the Evaluation and Treatment of Hepatitis C Among Veterans: A Retrospective Cohort Study. AJPH
98: 846-852
[Abstract][Full Text]
Chang, K.-O., George, D. W.
(2007). Bile Acids Promote the Expression of Hepatitis C Virus in Replicon-Harboring Cells. J. Virol.
81: 9633-9640
[Abstract][Full Text]
Donlin, M. J., Cannon, N. A., Yao, E., Li, J., Wahed, A., Taylor, M. W., Belle, S. H., Di Bisceglie, A. M., Aurora, R., Tavis, J. E., for the Virahep-C Study Group,
(2007). Pretreatment Sequence Diversity Differences in the Full-Length Hepatitis C Virus Open Reading Frame Correlate with Early Response to Therapy. J. Virol.
81: 8211-8224
[Abstract][Full Text]
Terrault, N. A., Adey, D. B.
(2007). The Kidney Transplant Recipient with Hepatitis C Infection: Pre- and Posttransplantation Treatment. CJASN
2: 563-575
[Abstract][Full Text]
Taylor, M. W., Tsukahara, T., Brodsky, L., Schaley, J., Sanda, C., Stephens, M. J., McClintick, J. N., Edenberg, H. J., Li, L., Tavis, J. E., Howell, C., Belle, S. H., for the Virahep-C Study Group,
(2007). Changes in Gene Expression during Pegylated Interferon and Ribavirin Therapy of Chronic Hepatitis C Virus Distinguish Responders from Nonresponders to Antiviral Therapy. J. Virol.
81: 3391-3401
[Abstract][Full Text]
Yu, M.-L., Dai, C.-Y., Huang, J.-F., Hou, N.-J., Lee, L.-P., Hsieh, M.-Y., Chiu, C.-F., Lin, Z.-Y., Chen, S.-C., Hsieh, M.-Y., Wang, L.-Y., Chang, W.-Y., Chuang, W.-L.
(2007). A randomised study of peginterferon and ribavirin for 16 versus 24 weeks in patients with genotype 2 chronic hepatitis C. Gut
56: 553-559
[Abstract][Full Text]
Russo, M. W., Ghalib, R., Sigal, S., Joshi, V.
(2006). Randomized trial of pegylated interferon {alpha}-2b monotherapy in haemodialysis patients with chronic hepatitis C. Nephrol Dial Transplant
21: 437-443
[Abstract][Full Text]
Hughes, C. A, Shafran, S. D
(2006). Chronic Hepatitis C Virus Management: 2000-2005 Update. The Annals of Pharmacotherapy
40: 74-82
[Abstract][Full Text]
Cree, B. A. C., Al-Sabbagh, A., Bennett, R., Goodin, D.
(2005). Response to Interferon Beta-1a Treatment in African American Multiple Sclerosis Patients. Arch Neurol
62: 1681-1683
[Abstract][Full Text]
Sun, J., Tumurbaatar, B., Jia, J., Diao, H., Bodola, F., Lemon, S. M., Tang, W., Bowen, D. G., McCaughan, G. W., Bertolino, P., Chan, T.-S.
(2005). Parenchymal Expression of CD86/B7.2 Contributes to Hepatitis C Virus-Related Liver Injury. J. Virol.
79: 10730-10739
[Abstract][Full Text]
Butera, D., Marukian, S., Iwamaye, A. E., Hembrador, E., Chambers, T. J., Di Bisceglie, A. M., Charles, E. D., Talal, A. H., Jacobson, I. M., Rice, C. M., Dustin, L. B.
(2005). Plasma chemokine levels correlate with the outcome of antiviral therapy in patients with hepatitis C. Blood
106: 1175-1182
[Abstract][Full Text]
Erhardt, A, Blondin, D, Hauck, K, Sagir, A, Kohnle, T, Heintges, T, Haussinger, D
(2005). Response to interferon alfa is hepatitis B virus genotype dependent: genotype A is more sensitive to interferon than genotype D. Gut
54: 1009-1013
[Abstract][Full Text]
Taylor, L. E., Rich, J. D., Tashima, K. T., Gholam, P. M., Torriani, F. J., Dieterich, D. T., Chung, R. T., Andersen, J., Volberding, P., the AIDS Clinical Trials Group A5071 Study Team,
(2004). Peginterferon plus Ribavirin for Hepatitis C in HIV-Infected Patients. NEJM
351: 2340-2342
[Full Text]
Aigner, E. S., Moriguchi, H., Sato, C., Muir, A. J.
(2004). Treatment of Chronic Hepatitis C in Blacks and Non-Hispanic Whites. NEJM
351: 831-832
[Full Text]
(2004). What Explains Low Response Rates to INF in Blacks with HCV Infection?. JWatch Gastroenterology
2004: 1-1
[Full Text]
Matthews, J. D., Bini, E. J.
(2004). Epidemiology, Diagnosis, and Treatment of Chronic Hepatitis C. Journal of Pharmacy Practice
17: 229-238
[Abstract]